Blown-in insulation or batt insulation? A direct comparison of the pros and cons

In our article ‘Efficiency on the building site – advantages and limitations of the blow-in method’, we have already reported in detail on the numerous advantages of the modern blow-in method. In this article, we compare conventional batt insulation with modern blow-in insulation. We’ll also highlight the crucial role that material permeability plays in blow-in insulation and, finally, give you an overview of ISOCELL’s blow-in insulation technology.

A direct comparison of the two systems illustrates just how significantly the choice of processing method affects the daily workflow, cost-effectiveness and the end result:

Blown-in insulation is no longer associated solely with a single raw material. The process is characterised by an enormous range of material options. Whatever ecological, economic or fire safety requirements a project may have, almost any standard insulation material can now be blown into building elements quickly and efficiently. 

Modern blow-in insulation technology can easily process:

• Cellulose: This tried-and-tested classic, made from single-source recycled newspaper, impresses with its outstanding properties in terms of thermal insulation, heat protection, sound insulation and fire safety. You can find out more about the building physics strengths and limitations of cellulose in our article ‘More than just insulation: Why cellulose leads the way in building physics’.
• Wood fibre: Wood fibre is used wherever contractors and building owners place particular value on the characteristics of wood. You can find out more in our article “Wood fibre or cellulose – which blow-in insulation is right for your project?”
• Glass wool and rock wool: The choice when maximum, non-combustible fire protection (A1) is required.
• Other eco-friendly natural fibres: Innovative, agricultural alternatives for consistently circular construction, such as our straw-based insulation, Plantacell. 

The key point here is that, regardless of whether planners and building owners opt for cellulose, wood fibre or rock wool, the logistical and technical advantages on site remain the same. 

It is only with the right machinery that the blow-in method can demonstrate its full potential – and clearly outperforms traditional insulation mats in terms of logistics and cost-effectiveness. As a system provider, ISOCELL offers its own, highly advanced blow-in technology, which is precisely tailored to the varying requirements of the trade. 

The range caters for businesses of all sizes:

• Compact, mobile blow-in machines: Ideal for flexible use on building sites and in renovation projects.
• High-performance all-rounders: Optimised for daily, heavy-duty use in traditional carpentry workshops.
• Fully automated large-scale systems & blow-in panels: Tailor-made for industrial prefabrication of building elements in the factory. 

This ensures that every contractor – from small craft businesses to large timber construction firms – can work with maximum efficiency and ergonomics. 

Opting for the blow-in method means choosing maximum flexibility in material selection and the greatest cost-effectiveness on site. It reduces actual working time, protects staff health and completely eliminates disposal costs for offcuts. The blow-in system guarantees the installer an optimised workflow and the customer a durable, seamless building with insulation that is free from thermal bridges.